CHRISOCHUS. 507 



881. Corynodes assamensis, Baly, Cist. Ent. ii, 1879, p. 439. 



Metallic purplish. Head strongly but not very closely punc- 

 tured on the vertex, front with a longitudinal groove which ter- 

 minates just above the apex of clypeus in a large ill-defined fovea ; 

 clypeus rather broader than long, semi-ovate, separated from the 

 face by a deep groove on either side, its extreme apex transverely 

 depressed ; surface closely punctured, clothed with fulvous hairs. 

 Antennae nearly three-fourths the length of body in the d 1 , terminal 

 six joints only slightly dilated ; scarcely more than half the length of 

 the body in the $ , terminal six joints more broadly dilated. Thorax 

 rather more than half as broad again as long, sides straight and 

 slightly convergent from base to middle, thence rounded arid con- 

 vergent, to apex ; disc convex, subcylindrical, sparingly punctured, 

 impressed at the sides just behind the middle with an ill-defined 

 fovea. Elytra narrowly oblong, convex, with a deep transverse de- 

 pression or sulcus below the base ; just within the lateral margins 

 in both sexes is a broad ill-defined longitudinal groove, within this 

 in the $ is a narrow longitudinal costa that extends from the 

 shoulders nearly to the apex of the elytra. Claws appendiculate. 



LengiJi 8-11 mm. 



Hob. Assam. 



Genus CHRYSOCHUS. 



Chrysochus, Redtenb. Fauna Austr. 1848, p. 558; Morawitz, Horce 

 &oc. Ent. Ross. i. 1861, p. 159; Marshall, Joitrn. Linn. Soc. viii, 

 1865, p. 48 ; JJaly, Trans. Ent. Soc. (3) xiv, 1807, p. 133 ; Chapuis, 

 Gen. Coleopt. x, 1874, p. 341. 



Type, C. pretiosus, Eabr., European. 



Range. Europe ; N. America ; India ; China ; Japan. 



Head inserted as far as the eyes in the thorax ; eyes surrounded 

 by a narrow sulcus ; clypeus feebly separated from the face ; 

 antennae subfiliform, the terminal joints only slightly thickened. 

 Thorax narrower than the elytra, similar in shape to that of 

 Cor y nodes but as a rule less conical. Claws appendiculate (in the 

 type) or bifid. 



The absence o the deep supraocular cavities separates this 

 genus from Corynodes, with which it otherwise agrees in metallic 

 coloration and proportionately large size ; the antennae never 

 have 



ation and proportionately large size ; the antennae neve 

 broadly dilated but only slightly thickened terminal joints. 



882. Chrysochus sikhima, sp. n. 



Violaceous-blue ; second and third joints of the antennae obscure 

 piceous. 



Elongate, nearly parallel-sided. Head sparingly and finely 

 punctured ; clypeus feebly separated at the sides, very finely and 

 closely punctured, finely pubescent on the anterior margin ; labrum 

 and palpi black ; antennae bluish-black or with the second and 

 third joints more or less piceous, the terminal joints gradually but 



